Peripheral Nervous System: Crash Course Anatomy & Physiology #12
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- Опубликовано: 29 июл 2024
- It is now time to meet the system that helps your brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and efferent divisions, how it processes information, the reflex arc, and what your brain has to say about pain.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: apple.co/3d4eyZo
Download it here for Android Devices: bit.ly/2SrDulJ
Chapters:
Introduction: Peripheral Nervous System 00:00
Sensory Nerve Receptors: Thermoreceptors, Photoreceptors, Chemoreceptors, Mechanoreceptors, and Nociceptors 0:56
What is Pain? 1:54
How Pain is Processed 2:51
Pain Threshold vs Pain Tolerance 3:50
How the Brain Processes Pain 4:25
Afferent and Efferent Divisions 5:42
Five Steps of the Reflex Arc 6:38
What the Brain Says About Pain 8:09
Review 9:09
Credits 9:39
***
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www.justplainsomething.com
Honestly wish Hank was my anatomy and physiology professor. I might actually understand it.
Yeah, me too -- i am taking an online class and she just has us read the book, take quizzes and her quizzes are not easy.
I have spent months investigating reducing neuropathy at home and found an awesome website at Gabs Neuro Guide (google it if you are interested)
Me too!!! He would be the most amazing professor!!
He has writers. All he has is a very great personality.
Jorge Ramirez I doubt that. I’m sure he knows a lot and contributes. 🙄 and he has the look and speaking-skills and etc.
"Well at least it wasn't a lego brick"-Frontal Cortex
Best comment.
10/10 made my day
No it was a lego just retextured 😎
My brain’s parietal section approves this message
hey bro
Some say he's still stepping on that nail...
Late call.....
Receptors having those specific names is hilarious to me like sure "thermo" for heat, "chemo" for chemical "mechano" for pressure and "photo" for light make perfect sense but then just "NO!" for pain. The lizard brain named that one 😂😂😂
Thank you, CrashCourse, for helping me further my education as a 30-something year old. All I remember of science in high school was all the terms we defined. Sadly, there were no discussions or labs - thanks in large part to all the miscreants in my school. However, the ability to learn and understand and apply the knowledge I am gaining from these videos (including the other science videos) and the books I've obtained, I am feeling confident in my pursuit of a medical degree.
You guys rock :)
Hope you are still going strong
I'm right there with you! I hope yours still in school or close to graduating!
I'm finding these videos amazing for my study, I do university level anatomy a physiology and paramedicine. and sometimes when the content get really intense it's so helpful to take a step back from the insanely hard content do some fun revision of the basics and then try the insanely hard stuff. Thanks crash course.
I think it's incredible we live in a world where people are making stuff like this, not only is this more detailed than the stuff I learnt at school, but it presents it in a way that's fun and intuitive, so cool!
The foot bouncing on the needle was sooooooo painful to watch...
Etion Pinaristill not as bad as ruclips.net/video/2m4a-bl4alo/видео.htmlm32s
auregamer5 Oh phew, I was expecting something far worse when I clicked on that.
Etion Pinari yeah, that really didn't need to be animated for so long
auregamer5 Even though I'd seen it before I ended up watching the entire first sketch
Etion Pinari Yeah, I had to censor it with my hand to be able to keep watching :(.
+Etion Pinari That was extremely painful to me
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: apple.co/3d4eyZo
Download it here for Android Devices: bit.ly/2SrDulJ
I wish this guy was my lecturer!! My brain seems to love everything he says!!
probably true
I’m studying for my Physiology exam (veterinary medicine) and this channel and Hank talking have been really helping me. Thank you so much
this man helped me understand everything i read while studying for the HESI exam. THANK YOU
Reflexive actions can be a bitch. A friend of mine was trying to pick something up between two hot stoves. His hand touched the left one, and his reflex told him to pull his hand away- right, into the other one. He bounced between the two at least four or five times before his higher functions made him pull back rather than sideways.
Yeah I know, #CoolStoryBro
+Eugene InLaw It was on a small boat, where the stoves were singular units and built into the architecture of the boat itself. Although he wins no points for sticking his hand down there in the first place..
It was, it really was. Thankfully he scuppered it soon after and lives in a much more modernised, stable boat now.
VidSheridan He should sue
NickSheridanVids not really a fault of the reflexive nerves but rather a bad placement of those stoves
WHY WHY DID YOU HAVE IT ANIMATED TO CONSTANTLY KEEP STEPPING ON IT WHYYYYYYY
I'm glad nobody does that in real life
hahahaha
"assure your dog you're not yelling at her, you're just yelling" I've had to do this before.
Personal trainer in training.....i am 100% grateful that i stumbled upon your channel! We need more teachers like you :)
You make learning fun :)
1:20 Nociception. I'll be using that from now on.
crashcourse math subjects would be awesome. thanks.
You could say Hank really struck a nerve with this one!
Srysly....
@Razzle Dazzle Did you really get this after 1 yr?
You are the chosen one , I have waited for a year now
@Razzle Dazzle Nope your not the chosen one , Sorry kiddo
Thank you, Hank Green and all of the Crash Course peoples!
Love these educational and entertaining videos.
Pain isn't subjective, suffering is. Pain is always sensed, but the proceeding reactions and emotional connections may vary from individual; whether from instinct or conditioning.
Naturally speaking:
The goal of pain is to entice suffering.
The goal of suffering is to entice fear.
The goal of fear is to elude death.
ShadowMantis702 Pain is the amount of activated cells mixed with your brain's reaction to said event, the reaction for the brain differs from person to person. Think of it as activated neurons + brain reaction = pain
TheSignetGamer I believe there is a Buddhist saying: "Everyone feels pain, but not everyone suffers."
I feel it is more precise to make the distinction between pain (sensation) and suffering (reaction). The signals sent from the nervous system's receptors has already dictated danger, igniting the sensation distinct from fair touch. The following appropriate reaction is to suffer from that feeling.
Pain = Damage sensory detection
Suffering = Consistent distress to entice the desire for repair
To suffer is the default, suffering makes you care about the pain. However this can be different or change. That fact that it can, I think verifies its distinction. Because if they were the same, we'd be condemned to always submit; nor could we discover pain deviants.
true words
Fear leads to Anger.
Anger leads to Hate.
Hate leads to Suffering.
I sense much fear from stepping on that stupid tack.
ShadowMantis702 Thanks for the philosophy lesson. Fr tho, some people do have a higher pain tolerance, all philosophy aside, with what they consider worth being upset about, or in your case you say it’s suffering. If I get hit in the guy I can withstand it, 1. Bc I got used to it 2. Bc of my getting used to that other painful things don’t seem so painful. Yeah some people can deal with it better, pain can be if you take out the distinctions between stuff bc of your own personal philosophy on it.
Crash Course, you guys are absolute life savors! I understand everything I watch from these videos! With a terrible teacher who, well, can't teach; these really help me pass his test!!
Every time I read one of the titles for this subject, I always think "Aww, no need to be nervous System, everything will be fine."
These videos are incredible, and make learning biology a real, entertaining, funny breeze.
Thanks to all those who produced this video
Watching these videos makes me painfully aware of my strangeled nerv in my right leg. What is kinda awesome that, if you feed your brain with other random stuff (And painkiller) you can subdue the pain to a degree. But as soon you dive into thinking about it in detail you don`t only feel the pain but can feel it even in more detail as more you know about it. I think that is amazing and baffels me everytime.
You are an amazing teacher!
Who would like Crash Course Meteorology?
So sad seeing this seeing a poor guy talking to hi. Self due to his lonnlieness
So sad to see someone who spells hi instead of his....
Bob Jenkins They also said 'seeing' twice, and "lonnlieness."
***** If you're looking for an argument, so sorry to disappoint. I have better things to do.
for those kinda stuff I would suggest you to take a look at there sister chanel SciShow Space there you will find more likely stuff like Meteorology.
It's a cool chanel anyhow.
I am Autistic and struggle to feel pain sometimes - when busy, i may not notice stepping on lego, but when overstimulated, my brain overreacts to pain and i feel the stepping on lego greatly.
Perfect timing for my exam in two days haha
***** Wooo! Love when that happens :) Happy studying!
-Nicole
***** I like your video, especially the advice in the second half concerning peripheral treatment. i really like your thought also but i personally recommend Knewreck prevent neuropathy guide for better result . Please Google it for more information
Laura Hershel how’d it turn out XD
This is the best youtube channel ever! This is helping me study for my upcoming physiology exam tomorrow!
I never comment on videos but I literally lost it when you described stepping on a tack. Assuring your dog you aren't yelling at her. LOL! Removing the spiney devil from your flesh. HAHAHA! Great videos by the way! You are AMAZING! Can't thank you enough for the much needed jokes while studying. Stay silly CrashCourseGuy!
I love learning anat and phys! I didn't get to do any at university despite doing a biology based degree. Thanks for being awesome Crash Course. PS- finally got around to signing up for Patreon, there are some great perks there if you haven't looked into it yet!
Love this channel!! It has made A&P so much easier!! Please do a Pharmacology Series!! Please Please Please
CrashCourse guy is the best!
His name is hank
i adore you CrashCourse team , thanks to all the patreons that make this possible, i will support the show too&
Hank i love your way of presenting scintific topics, you re awesome!
Testing on CNS and PNS next week for online AP class. So glad there is crashcourse to explain it in more detail, instead of just studying class lecture notes in power point. Thank you!
Oh my!!! Thank you soooo much for uploading this!!!😭😭 I have a test on this for my ap bio class tomorrow!!!!
Ricky Lin Woo! You're welcome! I hope you rock that exam!
-Nicole
Did you pass?!
CrashCourse these videos are great when you have an exam coming up, am tired of studying, and want to relax and watch a little tv. Thanks for all the uploads!!! You guys are awesome!!! I too have an exam soon which includes the nervous system. These are very helpful.
Ricky Lin
Are you searching for the optimal peripheral nerve treatment. If yes, then you should the new drug called Skyarza Neuropathy Treatment Star . I beg you also to search the google for it.
Reply ·
I am so glad I discovered this channel, these nervous system videos are saving me! Thank you
Found this chanel a week before my Anatomy exam (This friday!) Thank God for you guys! You made the most confusing and boring class fun and i finally understand the stuff i didnt!
Thanks Crash course, you make A&P very enjoyable and far easier to understand than my dreaded textbooks. Well done to another great vid. :)
I wish my teacher is like this . Like she just give us pop quiz and give us certain things we have to study . Although it seems like the things we studied aren’t in the exams like bruh very annoying
enormously helpful. brushing up on my A&P. Beginning school in September, pre-nursing.
Thank you for these informative crash courses! Have honestly helped me understand brain behaviour so much better than my actual tutor. Keep up the good work!
Animation team working really hard to make you literally feel the pain they're trying to visualize.
Thanks Crash Course! You make learning awesome :)
When I was 4, I accidentally cut off my finger. Since then, pain didn't feel as bad as it did before and it still doesn't.
I love Hank's hypothetical situations. They remind me of his probability word problems on vlogbrothers.
Absolutely fascinating! You always explain stuff really well. :D
I do not know what to do without crash course!!! They life savers ❤
"There's something on your face!" (HIT) "IT WAS NOCICEPTION!"
I truly love CC... I wish to be an interpreter someday, and I would dearly love to specialize in medical interpretation and cultural mediation. CC helps me to improve my scientific vocabulary to a great extent
i really like your videos.. they're really fun to watch..its nice to have fun and learning at the same time
keep it up :)
I remember in 6th grade we learned about this and the short name is PNS every time she said that we would laugh
we laughed on PNS and ANS ;)
LMAO!!!!
I can think of ways how and why...
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You were learning about this in 6th grade wtf?
Thank you for getting me through Anatomy and Biology 👍
Currently, I am working on my RMT...Crash Course, Hank, has made my studies understandable.
Thank you, thank you, THANK YOU!!!
The animation in this particular video is just. AMAZING.
Binge watching all your videos, thank you so much.
Your videos are a life saver. Thank you for making amazing contents.
Great-learning about nervous system right now- really helps! :)
very informative 😊😊 thanks a lot to everyone participated in this video , keep it up 😃😃
These have helped me so much for exams !!
Reflex Arc -- 6:40 -- Thanks for this info.
I love the part about reassuring your dog ahah, so true!
Youu have no idea how helpful this is. Nice work! :D
i just love the animations thanks to crash course team :) and afcourse his funny reactions :) thanks a lot sir :)
Hank. I had a brain hemorrhage 2 yrs ago and your videos help me understand difficult topics and as a result i can make progress and although i may never be "normal" again. You help arm me with information i use in my rehab
This is helping me for my quiz. Thank you
I love CrashCourse, great job Hank.
Hey. I understand ten minute time limit. But slow down.
You can try changing the speed from the "setting" button. I've been using 0.75 : )
These videos have helped me internalize some of the content of my physiotherapy studies and the things I need to learn for my neurology exam.
I love this course so much!
wow glad i found this animations and everything on point
Love this series!
I found this channel today and it is sooooooo freaking helpful!!!!!!!
Thanks crash course for explaining the PNS 🙏
It is quite helpful
dude honestly you freakin rock. these videos are SO helpful!!!! thank you so much!!!
I know this is a completely unrelated topic, but I absolutely cannot wait to see Hank on Tabletop's RPG show this summer. I am so ecstatic to see him along with such a sublime cast. I am eagerly awaiting hearing and seeing his character.
you people help me out alot!!!!!! thanks
perfect video. Thank you !
Thankyou crash course! I learned so much everytime i watch your video
Wow, what a complicated and brilliant design.
This account is awesome keep up the good work!
THE BEST THING EVER I LIKE TO SAY IM LOVING THE COURSE
Stubbed my toe this morning moments before watching this video. Great timing.
Love the montage!
what about phantom limb syndrome, or chronic pain after whatever caused the pain is healed, and neuropathy? please do an entire series on what's going on when the body isn't working right!
Good Job, CrashCourse!!
My anatomy courses love this video, especially Lane Rhodes.
I wish Hank you were my all time biology teacher. I would have scored 200 out of 100. Really appreciating job Hank.
your method of teaching is amazing
This video made me feel somewhat better for my wisdom-tooth-extraction pain :)
Thank you!!! sincerely, a proud patreon xo
Is there any CC video that explains the spinal cord and nerves??? I tried looking under CNS but only found brain info...
great job
i'm a student nurse and i cannot express how helpful these videos are! :D!
6:39 is a useful review and summary of the peripheral nervous system
It would be nice to have an idea of how fast this things happens and goes.
Great work anyway!
thanks.
This is amazing.
Thank you, crash course for helping me learn about the world of the physiology of the human body and is really important